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379 articles from THURSDAY 3.5.2012
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THURSDAY 3. MAY, 2012
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23:51
Odd Ways the Mind Warps Time
LONDON — Time, arguably our most precious nonrenewable resource, has a slippery nature in our minds. Sometimes it flows quickly. In other situations, it trickles at an unbearably slow pace. And, to the horror of many, it speeds as we age. -
23:24
Atomic-scale visualization of electron pairing in iron superconductors
By measuring how strongly electrons are bound together to form Cooper pairs in an iron-based superconductor, scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, Cornell University, St. Andrews University, and collaborators provide direct evidence supporting theories in which magnetism holds the key to this material's ability to carry current with no resistance. Because the measurements take into account the electronic bands and directions in which the electrons are traveling, which was central to testing the theoretical predictions, this research strengthens confidence that this type of theory may one day be used to identify or design new materials with improved properties - namely, superconductors operating at temperatures far higher than today's. -
23:24Sex differences account for some of the most of the spectacular traits in nature: the wild colours of male guppies, the plumage of peacocks, tusks on walruses and antlers on moose. Sexual conflict – the battle between males and females over mating – is thought to be a particularly potent force in driving the evolution traits that differ in males and females.
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23:24Global warming in Europe this century will mostly affect Scandinavia and the Mediterranean basin, the European Environment Agency warned on Thursday.
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23:24Facebook has become an official observer at the Global Network Initiative, a non-government organization dedicated to promoting Internet freedom and privacy rights.
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23:24(AP) -- Facebook has set a price range of $28 to $35 for its initial public offering of stock.
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23:24An optical switch developed at the Joint Quantum Institute (JQI) spurs the prospective integration of photonics and electronics. What, isn't electronics good enough? Well, nothing travels faster than light, and in the effort to speed up the processing and transmission of information, the combined use of light parcels (photons) along with electricity parcels (electrons) is desirable for developing a workable opto-electronic protocol.
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23:24Changes in the speed that ice travels in more than 200 outlet glaciers indicates that Greenland's contribution to rising sea level in the 21st century might be significantly less than the upper limits some scientists thought possible, a new study shows.
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23:24(AP) - Traces of blood and fragments of muscle, tendon, skin and hair found on 2,000-year-old stone knives have given researchers the first conclusive evidence that the obsidian blades were used for human sacrifice so long ago in Mexico.
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23:24(Phys.org) -- A new University of Florida study that determined the age of skeletal remains provides evidence humans reached the Western Hemisphere during the last ice age and lived alongside giant extinct mammals.
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23:24From the highest peak in the continental United States, Mt. Whitney at 14,000 feet in elevation, to the 10,000-foot-peaks near Lake Tahoe, scientific evidence from the University of Nevada, Reno shows the entire Sierra Nevada mountain range is rising at the relatively fast rate of 1 to 2 millimeters every year.
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23:24There is an old trick for remembering the difference between stalactites and stalagmites in a cave: Stalactites hold tight to the ceiling while stalagmites might one day grow to reach the ceiling. Now, it seems, stalagmites might also fill a hole in our understanding of Earth's climate system and how that system is likely to respond to the rapid increase in atmospheric carbon dioxide since preindustrial times.
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23:24(AP) -- A group of scientists will board a blimp to search for meteorites that rained over California's gold country last month.
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23:24Researchers have many tools available in studying and observing mammals. One is quite small—the stable isotope. Exploring ecological questions through analysis of stable isotopes is a rapidly developing area of research.
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23:24A team led by Johns Hopkins engineers has discovered some previously unknown properties of a common memory material, paving the way for development of new forms of memory drives, movie discs and computer systems that retain data more quickly, last longer and allow far more capacity than current data storage media.
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23:24
Engineering Academy Looks for New President
Charles Vest to step down next year at end of term -
23:21Going for jog regularly may help you live longer, a new study from Denmark suggests.
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23:16
City Room: Spring Time: Birdsong Beneath a Canopy of Green
It’s Week 7, and morels, spiders and wild geraniums are this week’s guests in a Staten Island woodland.
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23:06Agency to fund $20 million in grants for exploring uses for 24 compounds
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22:31
Simulating reality: Less memory required on quantum computer than on classical computer, study shows
Simulations of reality would require less memory on a quantum computer than on a classical computer, new research has shown. The study demonstrates a new way in which computers based on quantum physics could beat the performance of classical computers.
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22:24
Supermoon Coming Saturday—No Fears of Natural Disasters
Despite disaster fears, "nothing particularly special" will happen during the year's closest full moon—except a great sky show, experts say.
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22:20A doorknob that knows whether to lock or unlock based on how it is grasped, a smartphone that silences itself if the user holds a finger to her lips and a chair that adjusts room lighting based on recognizing if a user is reclining or leaning forward are among the many possible applications of Touché, a new sensing technique.
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22:20Nano-electromechanical switch technology could change the future of electronics. In two recent articles, researchers have explored the progress and future applications of the burgeoning technology.
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22:20From the highest peak in the continental United States, Mt. Whitney at 14,000 feet in elevation, to the 10,000-foot-peaks near Lake Tahoe, scientific evidence shows the entire Sierra Nevada mountain range is rising at the relatively fast rate of 1 to 2 millimeters every year.
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22:20Analysis of non-coding "junk" DNA has identified switches capable of turning on or off genes associated with the very common cancer.
Naposledy aktualizované zdroje
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CBC - Technology & Science News (dnes, 20:02)
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Technology Review Feed - Tech Review Top Stories (dnes, 19:30)
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Guardian Unlimited Science (dnes, 19:10)
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Sci-Tech Today (dnes, 17:47)
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BBC Science/Nature (dnes, 11:20)
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EurekAlert (dnes, 06:00)
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NASA (17. 5, 02:56)
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Discovery (7. 3, 18:11)
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TIME (27. 7, 08:30)
